Erratum

This article refers to:

Personalized third-trimester fetal growth evaluation: comparisons of individualized growth assessment, percentile line and conditional probability methods

Deter R., Lee W., Sangi-Haghpeykar H., Tarca A., Li J., Yeo L. and Romero R. (2016). Personalized third-trimester fetal growth evaluation: comparisons of individualized growth assessment, percentile line and conditional probability methods. The Journal of Maternal-Fetal & Neonatal Medicine. 29(2), 177–185.

http://dx.doi.org/10.3109/14767058.2014.995083

The equation given for calculating Total Variance for quadratic functions is incorrect. The actual equation used in this investigation was that published by Owen and Ogston:

$$\mathbf{T}\mathbf{o}\mathbf{t}\mathbf{a}\mathbf{l}\mathbf{V}\mathbf{a}\mathbf{r}=\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{0}}+\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{1}}{(\mathbf{A}\mathbf{g}\mathbf{e})}^{\mathbf{2}}+\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{2}}{(\mathbf{A}\mathbf{g}\mathbf{e})}^4+\mathbf{2}(\mathbf{A}\mathbf{g}\mathbf{e})\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{0},\mathbf{B}\mathbf{1}}+\mathbf{2}{(\mathbf{A}\mathbf{g}\mathbf{e})}^{\mathbf{2}}\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{0},\mathbf{B}\mathbf{2}}+\mathbf{2}{(\mathbf{A}\mathbf{g}\mathbf{e})}^{\mathbf{3}}\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{B}\mathbf{1},\mathbf{B}\mathbf{2}}+\mathbf{v}\mathbf{a}{\mathbf{r}}_{\mathbf{E}}$$

Taylor & Francis apologises for this error.